Caporegime
I am finding with V4 that PBO is working much better. In as much that setting PBO to use motherboard values actually makes a difference now.
In the past it made no difference at all and did not allow any noticeable difference to boost values.
I can still get higher cinebench using manual PBO settings but setting PBO to motherboard does push my temps to 70c now whereas the manual option willl have them at 80c.
Just starting fiddling with the individual core voltage adjustment and currently my fastest 2 cores seem happy to run at -20 which I shall ramp back up once i see where all the others are happy to run without Whea errors.
Also worth noting the latest Beta bios states that once used you cannot flash back to previous versions.
I found motherboard values never worked either. Interesting to see Asrock may finally be trying to sort their broken PBO implementation.